I’m not here to question your decision and I accept it. I’m here so we can be face to face and you can see me telling you how I feel and I wanted to see you because you are all that is important to me! N, you were the best choice I have ever made in my life and I feel extremely sorry for us both because this will be the biggest mistake for us both, but I accept it and I will step aside for her new life.
I havent read everything, but I wanted to share with you the 'mantra' that I got from my DB coach.
"I dont agree that divorce is the solution to our problems, but I love and respect you enough to accept it if that is what you choose."
(I may have gotten the end a little wrong. Sorry!)
Focus on these words as opposed to telling her she is making a mistake, I think.